Eine Plattform für die Wissenschaft: Bauingenieurwesen, Architektur und Urbanistik
Eine Plattform für die Wissenschaft: Bauingenieurwesen, Architektur und Urbanistik
Soft soil press-in type lateral pressure meter and test method
The invention provides a soft soil press-in type lateral pressure instrument and a test method. The lateral pressure instrument comprises a lateral pressure probe, a loading control system and a data acquisition system, and the lateral pressure probe comprises a mandrel, a water inlet hole, a water drainage hole, a pressure relief hole, a composite adhesive film, a pressing ring, a limiting ring, a water stop rubber ring, an annular blade foot, a displacement arm sensor and a water pressure sensor; a water inlet hole and a water outlet hole are formed in the side wall of the mandrel; a pressure relief hole is formed in the upper end of the mandrel; the upper and lower ends of the composite adhesive film are respectively arranged on the outer wall of the mandrel through pressing rings; the two limiting rings are fixed to the two ends of the mandrel and tightly pressed to the pressing rings. The loading control system is connected with the water inlet hole through a pipeline; and the data acquisition system is connected with the displacement arm sensor and the water pressure sensor. When a soft soil stratum is tested, static pressure or hammering can be directly carried out to reach the preset testing depth, the problem of drilling disturbance of soft soil is avoided, accurate measurement of swelling deformation and water pressure can be achieved, and then more real undisturbed soft soil lateral pressure characteristic parameters are obtained.
本发明提供一种软土压入式旁压仪及试验方法，该旁压仪包括旁压探头及加载控制系统、数据采集系统，旁压探头包括芯轴、进水孔、排水孔、泄压孔、复合胶膜、压环、限位环、止水胶圈、环形刃脚、位移臂传感器、水压力传感器；芯轴侧壁内部具有进水孔和排水孔；芯轴上端具有泄压孔；复合胶膜的上下两端分别通过压环设置于芯轴外壁；两个限位环固定于芯轴两端，与压环压合紧密；加载控制系统通过管路与进水孔相连；数据采集系统与位移臂传感器、水压力传感器相连。本发明在软土地层测试时，可直接静压或锤击到预定测试深度，避免了软土的钻孔扰动问题，且能够实现对膨胀变形和水压力的准确测量，进而获得更加真实的原状软土旁压特征参数。
Soft soil press-in type lateral pressure meter and test method
The invention provides a soft soil press-in type lateral pressure instrument and a test method. The lateral pressure instrument comprises a lateral pressure probe, a loading control system and a data acquisition system, and the lateral pressure probe comprises a mandrel, a water inlet hole, a water drainage hole, a pressure relief hole, a composite adhesive film, a pressing ring, a limiting ring, a water stop rubber ring, an annular blade foot, a displacement arm sensor and a water pressure sensor; a water inlet hole and a water outlet hole are formed in the side wall of the mandrel; a pressure relief hole is formed in the upper end of the mandrel; the upper and lower ends of the composite adhesive film are respectively arranged on the outer wall of the mandrel through pressing rings; the two limiting rings are fixed to the two ends of the mandrel and tightly pressed to the pressing rings. The loading control system is connected with the water inlet hole through a pipeline; and the data acquisition system is connected with the displacement arm sensor and the water pressure sensor. When a soft soil stratum is tested, static pressure or hammering can be directly carried out to reach the preset testing depth, the problem of drilling disturbance of soft soil is avoided, accurate measurement of swelling deformation and water pressure can be achieved, and then more real undisturbed soft soil lateral pressure characteristic parameters are obtained.
本发明提供一种软土压入式旁压仪及试验方法，该旁压仪包括旁压探头及加载控制系统、数据采集系统，旁压探头包括芯轴、进水孔、排水孔、泄压孔、复合胶膜、压环、限位环、止水胶圈、环形刃脚、位移臂传感器、水压力传感器；芯轴侧壁内部具有进水孔和排水孔；芯轴上端具有泄压孔；复合胶膜的上下两端分别通过压环设置于芯轴外壁；两个限位环固定于芯轴两端，与压环压合紧密；加载控制系统通过管路与进水孔相连；数据采集系统与位移臂传感器、水压力传感器相连。本发明在软土地层测试时，可直接静压或锤击到预定测试深度，避免了软土的钻孔扰动问题，且能够实现对膨胀变形和水压力的准确测量，进而获得更加真实的原状软土旁压特征参数。
Soft soil press-in type lateral pressure meter and test method
一种软土压入式旁压仪及试验方法
LIU HAO (Autor:in) / LI ZONGLONG (Autor:in) / HE ZHIPAN (Autor:in) / WANG HANWU (Autor:in) / NI MINGFU (Autor:in) / HU SHENGGANG (Autor:in) / ZHANG XIANG (Autor:in) / WANG XIAOFENG (Autor:in)
06.12.2024
Patent
Elektronische Ressource
Chinesisch
Pressure meter for testing soft soils
| Online Contents | 1979
Umbrella-shaped step type multipoint displacement meter anchor head for soft soil compound stratum
| Europäisches Patentamt | 2015
Spring-arm-type multi-point displacement meter anchor head for soft soil ground layer
| Europäisches Patentamt | 2015